Mobil Performans Karşılaştırma & Test Rehberi

Genel Bakış

Bu kapsamlı rehber, mobil uygulamalar için performans karşılaştırma, test stratejileri ve izleme tekniklerini kapsar. Platforma özel araçlar, otomatik test framework'leri ve canlı izleme çözümleri içerir.

Hızlı Karar

İhtiyaç	Test	Dikkat
Startup yavaş	Cold/warm start benchmark	Gerçek cihaz şart
Kaydırma takılıyor	Frame/jank testi	Debug build yanıltır
Bellek artıyor	Memory/leak profiling	Uzun oturum ölçülmeli
Release güveni	Perf regression gate	Eşikler gerçekçi olmalı

Üretim Kontrol Listesi

• Problem: Hangi performans metriği kullanıcı deneyimini bozuyor?
• Çözüm: Cihaz matrisi, test senaryosu, baseline ve regression eşiği net mi?
• Trade-off: Daha fazla cihaz kapsamı güven verir; CI süresi ve cihaz maliyeti artar.
• Hata durumu: Thermal throttling, flaky measurement, debug artifact ve background noise ele alınmalı.
• Ölçüm: Startup, frame time, memory peak, network latency, battery drain ve crash/ANR izlenmeli.
• Güvenlik/maliyet: Test verisi hassas olmamalı; device farm ve uzun benchmark çalışmaları maliyet üretir.

Performans Metrikleri & Karşılaştırmalar

Temel Performans Göstergeleri

interface PerformanceMetrics {
  // Uygulama Yaşam Döngüsü
  coldStartTime: number;      // Hedef: < 2s
  warmStartTime: number;      // Hedef: < 1s
  hotStartTime: number;       // Hedef: < 0.5s
  // Çalışma Zamanı Performansı
  frameRate: number;          // Hedef: 60 FPS
  frameDrops: number;         // Hedef: < %5
  memoryUsage: number;        // Hedef: < 100MB
  cpuUsage: number;           // Hedef: < %20
  // Ağ Performansı
  apiResponseTime: number;    // Hedef: < 500ms
  networkErrors: number;      // Hedef: < %1
  dataUsage: number;          // Minimize edilmeli
  // Kullanıcı Deneyimi
  screenTransitionTime: number; // Hedef: < 300ms
  scrollPerformance: number;    // Hedef: 60 FPS
  inputLatency: number;         // Hedef: < 100ms
  batteryDrain: number;         // Minimize edilmeli
}

class PerformanceBenchmark {
  private metrics: PerformanceMetrics[] = [];
  private thresholds = {
    coldStart: 2000,
    frameRate: 55,
    memoryUsage: 100 * 1024 * 1024, // 100MB
    apiResponse: 500,
  };
  async measurePerformance(): Promise<PerformanceReport> {
    const metrics = await this.collectMetrics();
    const analysis = this.analyzeMetrics(metrics);
    return {
      metrics,
      analysis,
      recommendations: this.generateRecommendations(analysis),
      grade: this.calculateGrade(analysis),
    };
  }
  private async collectMetrics(): Promise<PerformanceMetrics> {
    return {
      coldStartTime: await this.measureColdStart(),
      warmStartTime: await this.measureWarmStart(),
      hotStartTime: await this.measureHotStart(),
      frameRate: await this.measureFrameRate(),
      frameDrops: await this.measureFrameDrops(),
      memoryUsage: await this.measureMemoryUsage(),
      cpuUsage: await this.measureCPUUsage(),
      apiResponseTime: await this.measureAPIResponse(),
      networkErrors: await this.measureNetworkErrors(),
      dataUsage: await this.measureDataUsage(),
      screenTransitionTime: await this.measureScreenTransitions(),
      scrollPerformance: await this.measureScrollPerformance(),
      inputLatency: await this.measureInputLatency(),
      batteryDrain: await this.measureBatteryDrain(),
    };
  }
}

Platforma Özel Test Araçları

iOS Performans Testi

// iOS Performans Test Framework'ü
import XCTest
import MetricKit

class iOSPerformanceTests: XCTestCase {
    private let performanceMonitor = PerformanceMonitor()
    func testColdStartPerformance() {
        measure(metrics: [XCTApplicationLaunchMetric()]) {
            XCUIApplication().launch()
        }
    }
    func testScrollPerformance() {
        let app = XCUIApplication()
        app.launch()
        let scrollView = app.scrollViews.firstMatch
        measure(metrics: [XCTOSSignpostMetric.scrollingAndDecelerationMetric]) {
            scrollView.swipeUp(velocity: .fast)
        }
    }
    func testMemoryPerformance() {
        measure(metrics: [XCTMemoryMetric()]) {
            performMemoryIntensiveTask()
        }
    }
    func testCPUPerformance() {
        measure(metrics: [XCTCPUMetric()]) {
            performCPUIntensiveTask()
        }
    }
}

// MetricKit ile Canlı İzleme
class MetricKitManager: NSObject, MXMetricManagerSubscriber {
    override init() {
        super.init()
        MXMetricManager.shared.add(self)
    }
    func didReceive(_ payloads: [MXMetricPayload]) {
        for payload in payloads {
            processMetricPayload(payload)
        }
    }
    private func processMetricPayload(_ payload: MXMetricPayload) {
        // CPU metriklerini işle
        if let cpuMetrics = payload.cpuMetrics {
            logCPUMetrics(cpuMetrics)
        }
        // Bellek metriklerini işle
        if let memoryMetrics = payload.memoryMetrics {
            logMemoryMetrics(memoryMetrics)
        }
        // Ekran metriklerini işle
        if let displayMetrics = payload.displayMetrics {
            logDisplayMetrics(displayMetrics)
        }
        // Uygulama başlatma metriklerini işle
        if let launchMetrics = payload.applicationLaunchMetrics {
            logLaunchMetrics(launchMetrics)
        }
    }
    private func logCPUMetrics(_ metrics: MXCPUMetrics) {
        let cpuUsage = metrics.cumulativeCPUTime.converted(to: .seconds).value
        Analytics.log("cpu_usage", value: cpuUsage)
    }
    private func logMemoryMetrics(_ metrics: MXMemoryMetrics) {
        let peakMemory = metrics.peakMemoryUsage.converted(to: .megabytes).value
        Analytics.log("peak_memory", value: peakMemory)
    }
}

Android Performans Testi

// Android Performans Test Framework'ü
@RunWith(AndroidJUnit4::class)
@LargeTest
class AndroidPerformanceTests {
    @get:Rule
    val activityRule = ActivityTestRule(MainActivity::class.java)
    @Test
    fun testColdStartPerformance() {
        val scenario = ActivityScenario.launch(MainActivity::class.java)
        val startTime = System.nanoTime()
        scenario.onActivity { activity ->
            val endTime = System.nanoTime()
            val launchTime = (endTime - startTime) / 1_000_000
            Assert.assertTrue("Cold start too slow: ${launchTime}ms", launchTime < 2000)
        }
    }
    @Test
    fun testScrollPerformance() {
        // JankStats ile scroll performansı ölç
        val jankStats = JankStats.createAndTrack(activityRule.activity.window) { frameData ->
            frameData.states.forEach { state ->
                when (state) {
                    is JankStats.JankStatsApi.JankState.Jank -> {
                        Log.w("Performance", "Jank detected: ${state.reason}")
                    }
                }
            }
        }
        // Scroll testi
        onView(withId(R.id.recycler_view))
            .perform(RecyclerViewActions.scroll(10))
    }
    @Test
    fun testMemoryUsage() {
        val runtime = Runtime.getRuntime()
        val initialMemory = runtime.totalMemory() - runtime.freeMemory()
        performMemoryIntensiveTask()
        val finalMemory = runtime.totalMemory() - runtime.freeMemory()
        val memoryIncrease = finalMemory - initialMemory
        Assert.assertTrue(
            "Memory usage too high: ${memoryIncrease / 1024 / 1024}MB",
            memoryIncrease < 50 * 1024 * 1024
        )
    }
}

// Sürekli Performans İzleme
class AndroidPerformanceMonitor {
    private val frameMetricsListener = FrameMetricsListener()
    fun startMonitoring(activity: Activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            activity.window.addOnFrameMetricsAvailableListener(
                frameMetricsListener,
                Handler(Looper.getMainLooper())
            )
        }
        startMemoryMonitoring()
        startCPUMonitoring()
    }
    private inner class FrameMetricsListener : Window.OnFrameMetricsAvailableListener {
        override fun onFrameMetricsAvailable(
            window: Window,
            frameMetrics: FrameMetrics,
            dropCountSinceLastInvocation: Int
        ) {
            val totalDuration = frameMetrics.getMetric(FrameMetrics.TOTAL_DURATION)
            val layoutDuration = frameMetrics.getMetric(FrameMetrics.LAYOUT_MEASURE_DURATION)
            val drawDuration = frameMetrics.getMetric(FrameMetrics.DRAW_DURATION)
            Analytics.log("frame_metrics", mapOf(
                "total_duration" to totalDuration,
                "layout_duration" to layoutDuration,
                "draw_duration" to drawDuration,
                "dropped_frames" to dropCountSinceLastInvocation
            ))
            if (totalDuration > 16_000_000) {
                Log.w("Performance", "Slow frame detected: ${totalDuration / 1_000_000}ms")
            }
        }
    }
}

React Native Performans Testi

// React Native Performans Testleri
import { render, waitFor } from '@testing-library/react-native';
import { performance } from 'perf_hooks';

class ReactNativePerformanceTests {
  async testComponentRenderPerformance<T>(Component: React.ComponentType<T>, props: T): Promise<PerformanceResult> {
    const startTime = performance.now();
    const { rerender } = render(<Component {...props} />);
    const initialRenderTime = performance.now() - startTime;
    const rerenderStartTime = performance.now();
    rerender(<Component {...props} />);
    const rerenderTime = performance.now() - rerenderStartTime;
    return {
      initialRenderTime,
      rerenderTime,
      passed: initialRenderTime < 100 && rerenderTime < 50,
    };
  }
  async testListScrollPerformance(): Promise<PerformanceResult> {
    const frameDrops: number[] = [];
    const frameRateMonitor = setInterval(() => {
      const fps = this.getCurrentFPS();
      if (fps < 55) {
        frameDrops.push(fps);
      }
    }, 100);
    await this.simulateScroll();
    clearInterval(frameRateMonitor);
    return {
      frameDrops: frameDrops.length,
      averageFPS: this.calculateAverageFPS(),
      passed: frameDrops.length < 5,
    };
  }
  private getCurrentFPS(): number {
    return 60;
  }
}

Flutter Performans Testi

// Flutter Performans Testleri
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';

class FlutterPerformanceTests {
  void testScrollPerformance() {
    testWidgets('Scroll performance test', (WidgetTester tester) async {
      await tester.binding.traceAction(() async {
        await tester.pumpWidget(MyApp());
        final listFinder = find.byType(ListView);
        await tester.drag(listFinder, const Offset(0, -500));
        await tester.pumpAndSettle();
        await tester.drag(listFinder, const Offset(0, 500));
        await tester.pumpAndSettle();
      }, reportKey: 'scroll_performance_timeline', stream: Timeline.timeSync);
    });
  }
  void testWidgetBuildPerformance() {
    testWidgets('Widget build performance', (WidgetTester tester) async {
      final stopwatch = Stopwatch()..start();
      await tester.pumpWidget(ComplexWidget());
      stopwatch.stop();
      expect(stopwatch.elapsedMilliseconds, lessThan(100),
          reason: 'Widget build took too long: ${stopwatch.elapsedMilliseconds}ms');
    });
  }
  void testAnimationPerformance() {
    testWidgets('Animation performance test', (WidgetTester tester) async {
      await tester.binding.traceAction(() async {
        await tester.pumpWidget(AnimatedWidget());
        await tester.tap(find.byType(FloatingActionButton));
        await tester.pumpAndSettle(const Duration(seconds: 2));
      }, reportKey: 'animation_performance_timeline');
    });
  }
}

Otomatik Performans Testleri

CI/CD Pipeline'da Performans Testleri

# GitHub Actions ile Performans Testleri
name: Mobile Performance Tests
on:
  pull_request:
    branches: [main]
  push:
    branches: [main]
jobs:
  ios-performance:
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v3
      - name: Setup iOS
        uses: actions/setup-node@v3
        with:
          node-version: '18'
      - name: Install dependencies
        run: |
          cd ios
          pod install
      - name: Run iOS Performance Tests
        run: |
          xcodebuild test \
            -workspace ios/App.xcworkspace \
            -scheme App \
            -destination 'platform=iOS Simulator,name=iPhone 14' \
            -testPlan PerformanceTests \
            -resultBundlePath TestResults.xcresult
      - name: Analyze Performance
        run: |
          xcrun xcresulttool get --format json \
            --path TestResults.xcresult > performance-results.json
      - name: Upload Results
        uses: actions/upload-artifact@v3
        with:
          name: ios-performance-results
          path: performance-results.json
  android-performance:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Setup Android
        uses: android-actions/setup-android@v2
      - name: Run Android Performance Tests
        run: |
          ./gradlew :app:connectedAndroidTest \
            -Pandroid.testInstrumentationRunnerArguments.class=com.app.PerformanceTestSuite
      - name: Generate Performance Report
        run: |
          ./gradlew :app:generatePerformanceReport
      - name: Upload Results
        uses: actions/upload-artifact@v3
        with:
          name: android-performance-results
          path: app/build/reports/performance/
  performance-analysis:
    needs: [ios-performance, android-performance]
    runs-on: ubuntu-latest
    steps:
      - name: Download Results
        uses: actions/download-artifact@v3
      - name: Analyze Performance Trends
        run: |
          node scripts/analyze-performance.js
      - name: Comment PR with Results
        uses: actions/github-script@v6
        with:
          script: |
            const fs = require('fs');
            const results = JSON.parse(fs.readFileSync('performance-summary.json'));
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `## Performance Test Results\n\n${results.summary}`
            });

Canlı Performans İzleme

Gerçek Zamanlı Performans Dashboard'u

// Performans İzleme Servisi
class PerformanceMonitoringService {
  private analytics: AnalyticsService;
  private alerting: AlertingService;
  constructor() {
    this.analytics = new AnalyticsService();
    this.alerting = new AlertingService();
  }
  async setupRealTimeMonitoring(): Promise<void> {
    this.setupFrameRateMonitoring();
    this.setupMemoryMonitoring();
    this.setupNetworkMonitoring();
    this.setupCrashReporting();
    this.setupPerformanceAlerts();
  }
  private setupFrameRateMonitoring(): void {
    const frameRateMonitor = new FrameRateMonitor();
    frameRateMonitor.onFrameRate((fps: number) => {
      this.analytics.track('frame_rate', { fps });
      if (fps < 50) {
        this.alerting.sendAlert({
          type: 'performance',
          severity: 'warning',
          message: `Low frame rate detected: ${fps} FPS`,
          metadata: { fps, timestamp: Date.now() }
        });
      }
    });
  }
  private setupMemoryMonitoring(): void {
    const memoryMonitor = new MemoryMonitor();
    memoryMonitor.onMemoryUsage((usage: MemoryUsage) => {
      this.analytics.track('memory_usage', usage);
      if (usage.used > usage.total * 0.8) {
        this.alerting.sendAlert({
          type: 'memory',
          severity: 'critical',
          message: 'High memory usage detected',
          metadata: usage
        });
      }
    });
  }
  generatePerformanceReport(): PerformanceReport {
    return {
      summary: this.analytics.getSummary(),
      trends: this.analytics.getTrends(),
      alerts: this.alerting.getActiveAlerts(),
      recommendations: this.generateRecommendations(),
    };
  }
}

Performans Dashboard Bileşeni

interface PerformanceDashboardProps {
  timeRange: TimeRange;
  platforms: Platform[];
}

const PerformanceDashboard: React.FC<PerformanceDashboardProps> = ({
  timeRange,
  platforms
}) => {
  const [metrics, setMetrics] = useState<PerformanceMetrics[]>([]);
  const [alerts, setAlerts] = useState<Alert[]>([]);
  useEffect(() => {
    const fetchData = async () => {
      const data = await PerformanceAPI.getMetrics(timeRange, platforms);
      setMetrics(data.metrics);
      setAlerts(data.alerts);
    };
    fetchData();
    const interval = setInterval(fetchData, 30000);
    return () => clearInterval(interval);
  }, [timeRange, platforms]);
  return (
    <div className="performance-dashboard">
      <MetricsOverview metrics={metrics} />
      <FrameRateChart data={metrics} />
      <MemoryUsageChart data={metrics} />
      <NetworkPerformanceChart data={metrics} />
      <AlertsPanel alerts={alerts} />
      <RecommendationsPanel metrics={metrics} />
    </div>
  );
};

Performans Test Stratejileri

Mobil Uygulamalar için Yük Testi

// Mobil Yük Test Framework'ü
class MobileLoadTester {
  private testConfig: LoadTestConfig;
  constructor(config: LoadTestConfig) {
    this.testConfig = config;
  }
  async runLoadTest(): Promise<LoadTestResults> {
    const results: LoadTestResults = {
      totalRequests: 0,
      successfulRequests: 0,
      failedRequests: 0,
      averageResponseTime: 0,
      throughput: 0,
      errors: [],
    };
    const userSimulations = Array.from(
      { length: this.testConfig.concurrentUsers },
      (_, index) => this.simulateUser(index)
    );
    const allResults = await Promise.allSettled(userSimulations);
    return this.aggregateResults(allResults);
  }
  private async simulateUser(userId: number): Promise<UserTestResult> {
    const userActions = [
      'login',
      'browse',
      'search',
      'viewDetails',
      'addToCart',
      'checkout',
    ];
    const results: ActionResult[] = [];
    for (const action of userActions) {
      const startTime = Date.now();
      try {
        await this.performAction(action);
        const endTime = Date.now();
        results.push({
          action,
          success: true,
          responseTime: endTime - startTime,
          userId,
        });
      } catch (error) {
        results.push({
          action,
          success: false,
          error: error.message,
          userId,
        });
      }
    }
    return { userId, results };
  }
}

---

Bu rehberde:

1. Detaylı Performans Metrikleri – Tüm önemli göstergeler
2. Platforma Özel Testler – iOS, Android, React Native, Flutter
3. Otomatik CI/CD Testleri – Sürekli performans izleme
4. Canlı İzleme – Gerçek zamanlı dashboard
5. Yük Testleri – Yük ve stres testleri

Tüm başlıklar, kod örnekleri ve best practice'ler İngilizce orijinal ile birebir uyumlu şekilde Türkçeye aktarılmıştır.